The Apple iPhone comes with a preloaded flash drive set at 16 or 32 gigabytes. The original iPhone with 8 gigabytes of memory is no longer produced. If you want to increase the amount of storage on your iPhone you need to back up information currently on the phone and then remove it from the phone's storage space. Doing so allows you to access the content later off your computer.
Connect your Apple iPhone to the computer via the provided USB cable. Momentarily iTunes launches on your system. The photo program you have on your computer also launches. All of the new images you have taken with your phone are now backed up onto your computer.
Select the iPhone under "My Devices" on the left side of the iTunes window. Click the tab you want to remove stuff from (such as "Apps," "Music" or "Movies").
Deselect the items you want to remove and click the "Sync" button. After the items have been removed, it increases the storage on your iPhone.
Disconnect the iPhone from the computer.
Unlock the iPhone, sliding your finger over the "Unlock" switch, then select "Photos." Click the photo album, then press the picture you have backed up on your computer. Push the "Delete" icon in the lower right corner of the screen and the image deletes. You can do this to all of the images saved on your phone.